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                            <div style="color:gray; word-break: break-all; font-size:12px;">原英文版地址: <a href="https://www.elastic.co/guide/en/elasticsearch/reference/7.7/index-modules-mapper.html" rel="nofollow" target="_blank">https://www.elastic.co/guide/en/elasticsearch/reference/7.7/index-modules-mapper.html</a>, 原文档版权归 www.elastic.co 所有<br/>本地英文版地址: <a href="../en/index-modules-mapper.html" rel="nofollow" target="_blank">../en/index-modules-mapper.html</a></div>
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<strong>重要</strong>: 此版本不会发布额外的bug修复或文档更新。最新信息请参考 <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html" rel="nofollow">当前版本文档</a>。
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<a id="index-modules-mapper"></a>Mapper<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/index-modules/mapper.asciidoc">edit</a>
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<p>The mapper module acts as a registry for the type mapping definitions
added to an index either when creating it or by using the put mapping
api. It also handles the dynamic mapping support for types that have no
explicit mappings pre defined. For more information about mapping
definitions, check out the <a class="xref" href="mapping.html" title="Mapping">mapping section</a>.</p>
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